摘要
为了研究内置高温热管结构的叶片冷却的热防护方式的可靠性,建立三维叶片疏导式结构等效换热模型,对其等效换热过程进行了数值模拟,得出叶片内部的温度分布和外部流场的各物理性质参数。结果表明该模型可以简化地模拟出热管的高导热性和均温性等特点,同时分析了影响该冷却方式的主要影响因素:在其他条件不变的情况下,入口温度越高,速度越高,叶片整体温度越高。该结果对叶片正常工作范围的确定有重要的参考价值。
Numerical simulation was carried out to study the the reliability of the thermal protection method of blade cooling with heat pipe. This paper studies the internal temperature distribution and external flow field parameters of the blade. The results show that the model can simplify the high thermal conductivity and temperature uniformity of the heat pipe, and analyze the main influencing factors affecting the cooling mode. The higher the inlet temperature, the higher the speed and the higher the overall temperature of the blade. And the ribs on the base play an important role in the overall cooling effect. This result is important for blade cooling and the determination of the normal working range of the blade.
作者
陆泊桥
刘红
尹洪超
LU Bo-qiao;LIU Hong;YIN Hong-chao
出处
《节能》
2020年第6期124-128,共5页
Energy Conservation
关键词
热管
叶片冷却
气固耦合
数值模拟
heat pipe
blade cooling
gas-solid coupling
numerical simulation
